Surface Roughness and Grain Size Characterization of Annealing Temperature Effect For Growth Gallium and Tantalum Doped Ba0.5 Sr0.5TiO3Thin Film

The Zn-Se bilayer structure prepared using thermal evaporation method at pressure 10-5 Torr. These films annealed in the vacuum for two hours on different constant temperatures. The optical band gap was found to be varying with annealing temperature due to removal of defects and increase in grain size. It was also observed by the X-ray diffraction pattern the grain size of the film increase with annealing temperature. The lattice constant of hexagonal structure of these films is found to be a =b=4.42Å and c=5.68Å. The dominant peaks to be at 23.2°,28° and 43.9° having values (100), (002) and (111) respectively. The Rutherford back scattering data of these films confirmed the mixing of elements with time.

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Post annealing temperature effect on photoluminescence spectroscopy of ZnO thin film

2010 International Conference on Electronic Devices, Systems and Applications ◽

10.1109/icedsa.2010.5503039 ◽

2010 ◽

Cited By ~ 4

Author(s):

S.S. Shariffudin ◽

M. H. Mamat ◽

M. Rusop

Keyword(s):

Thin Film ◽

Temperature Effect ◽

Annealing Temperature ◽

Photoluminescence Spectroscopy ◽

Zno Thin Film ◽

Post Annealing ◽

Post Annealing Temperature

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Characterization of Cold-Sprayed FeAl/WC Nanocomposite Coating

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.423-426.63 ◽

2013 ◽

Vol 423-426 ◽

pp. 63-66

Author(s):

Hong Tao Wang ◽

Ruo Yu Wang ◽

Xiao Chen ◽

Xiao Bo Bai ◽

Zeng Xiang Dong ◽

...

Keyword(s):

Grain Size ◽

Lamellar Structure ◽

Annealing Temperature ◽

Annealing Treatment ◽

Cold Spraying ◽

Nanocomposite Coating ◽

Mechanically Alloyed ◽

Dense Microstructure ◽

Before And After

A FeAl/WC nanocomposite coating was produced by cold spraying of mechanically alloyed Fe/Al/WC composite powder assisted with annealing treatment. The microstructure and grain size of FeAl/WC nanocomposite coating before and after annealing treatment were characterized. The results indicated that as-sprayed Fe (Al)/WC nanocomposite coating presented a dense microstructure with lamellar structure. The phase transformation from Fe (Al) solid solution to FeAl intermetallics within as-sprayed nanocomposite coating occurred when annealed at 550°C for 25 h. The annealed nanocomposite coating was composed of nanograins of size ranging from 50-100 nm and the grain size of FeAl increased with increasing the annealing time. Moreover, the effect of annealing temperature on the microstructure of the FeAl/WC nanocomposite coating was investigated.

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Characterization of New SBT Sol System and its thin film on the Platinum Electrode for Fram Application

MRS Proceedings ◽

10.1557/proc-493-231 ◽

1997 ◽

Vol 493 ◽

Author(s):

YongSoo Choi ◽

WooSik Kim ◽

ChangEun Kim ◽

WhanSik Yoo ◽

BaeYeon Kim ◽

...

Keyword(s):

Thin Film ◽

Heat Treatment ◽

Grain Size ◽

Platinum Electrode ◽

Chelating Agent ◽

Si Substrate ◽

Electrode Area ◽

Average Grain Size

ABSTRACTStable SBT sols for FRAM application were made from Sr-isopropoxide, Bi-acetate, and Ta-ethoxide with 2-ethoxyethanol as a solvent and chelating agent, TEA. The sol were spin-on coated on the Pt /Ti/SiO2/Si substrate. From the IR and DTA/TGA, the 2-ethoxyethanol -triethanolamine sol system is quite stable against aging. 5% excess Bi added sol and 800°C heat treatment of the thin film revealed the most crystallinity. There is a change in the orientation of thin film above 800°C heat treatment from c-axis to(105). The average grain size of thin film is very small, i.e., 40 nm at 800°C, and it has very narrow distributions, and the thickness of the coating were about 100nm, which would promise smaller electrode area and higher yield.

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Absorbance Studies of Perovskite CH3NH3PbI(3-x)Clx as Light Harvester in Solar Cell

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1112.282 ◽

2015 ◽

Vol 1112 ◽

pp. 282-285

Author(s):

Prawistin Noorlaily ◽

Maria Ulfa ◽

Satria Zulkarnaen Bisri ◽

Ferry Iskandar

Keyword(s):

Thin Film ◽

Solar Cell ◽

Annealing Temperature ◽

Photovoltaic Cells ◽

Synthesis Temperature ◽

Synthesis And Characterization ◽

Perovskite Materials ◽

Hybrid Perovskite ◽

Precursor Composition

Hybrid perovskite is one of the emerging materials which is currently being widely investigated for solar cells. Here we report the synthesis and characterization of perovskite compound which can be used as a light harvester in photovoltaic cells, which is CH3NH3PbI(3-x)Clx. The perovskite materials were synthesized using solution-based methods. Several parameters are investigated in the synthesis of CH3NH3PbI(3-x)Clx perovskite, which are the influence of precursor composition, synthesis temperature , precursor concentration, and the annealing temperature. These parameters are optimized against the absorbance and bandgap of the synthesized CH3NH3PbI(3-x)Clx thin film. The optimized perovskite thin film is obtained with excellent absorption capabilities for solar cell applications.

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